<!DOCTYPE html>
<html>
<head>
<style>
td {
  width: 200px;
  height: 100px;
}
body {
  margin: 50px;
}
</style>
</head>
<body>
<table>
  <tr>
    <td id="target" style="height: 250px">
    </td>
  </tr>
  <tr>
    <td>
    </td>
    <td style="border: 1px solid black; background-color: green;">
    </td>
  </tr>
</table>
</body>
